CVE-2023-23933 Issue in Anomaly Detection with document and field level rules in numerical feature aggregations

Medium 5.7 Published 3 Feb 2023 Updated 10 Mar 2025

Authenticated users with the Anomaly Detector role can bypass field-level restrictions to read aggregated numerical data from restricted indexes.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2023-23933?

CVE-2023-23933 is a medium-severity missing authorization vulnerability in opensearch-project anomaly-detection, published on 3 Feb 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

OpenSearch Anomaly Detection identifies atypical data and receives automatic notifications. There is an issue with the application of document and field level restrictions in the Anomaly Detection plugin, where users with the Anomaly Detector role can read aggregated numerical data (e.g. averages, sums) of fields that are otherwise restricted to them. This issue only affects authenticated users who were previously granted read access to the indexes containing the restricted fields. This issue has been patched in versions 1.3.8 and 2.6.0. There are no known workarounds for this issue.

Weakness: CWE-125

Which versions are affected by CVE-2023-23933?

It affects 1 product.

Products include Amazon Opensearch.

How do I fix CVE-2023-23933?

No fix has been published for CVE-2023-23933 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2023-23933 being exploited?

There is no known exploitation of CVE-2023-23933 in the wild and no public exploit code.

Sources

Also known as GHSA-47qw-jwpx-pp4c.